23857894 has 16 divisors (see below), whose sum is σ = 37144800. Its totient is φ = 11479104.

The previous prime is 23857861. The next prime is 23857903. The reversal of 23857894 is 49875832.

It is a super-2 number, since 2×23857894² = 1138398212230472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24994 + ... + 25930.

It is an arithmetic number, because the mean of its divisors is an integer number (2321550).

Almost surely, 2^23857894 is an apocalyptic number.

23857894 is a deficient number, since it is larger than the sum of its proper divisors (13286906).

23857894 is a wasteful number, since it uses less digits than its factorization.

23857894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

The product of its digits is 483840, while the sum is 46.

The square root of 23857894 is about 4884.4543195735. The cubic root of 23857894 is about 287.8794747098.

The spelling of 23857894 in words is "twenty-three million, eight hundred fifty-seven thousand, eight hundred ninety-four".